Home / 214,532,022.40-321,965,995.20-99,530,814.40

Finding the Fourth Proportional to 214,532,022.40, 321,965,995.20 and 99,530,814.40

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Solution

The fourth proportional to 214,532,022.40, 321,965,995.20 and 99,530,814.40 is: 149,374,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,532,022.40 : 321,965,995.20 = 99,530,814.40 : x
  2. Step 2: Convert to fraction form
    214,532,022.40/321,965,995.20 = 99,530,814.40/x
  3. Step 3: Cross multiply
    214,532,022.40x = 321,965,995.20 × 99,530,814.40
  4. Step 4: Simplify right side
    214,532,022.40x = 32,045,537,711,362,492
  5. Step 5: Solve for x
    x = 32,045,537,711,362,492/214,532,022.40
  6. Step 6: Final answer
    x = 149,374,146.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.